Retaining means for sanitary cup liners



RETAINING MENS FOR SANITARY CUP LINERS F'ildAJn. 5, 1921 Patented Mar. 10, 1925.

UNITED STATES PATENT OFFICE.

DAVID F. CURTIN, OF CHICAGO, ILLINOIS, ASSIGNOR TO PETER Ti PO'TTS AND W. G. IOTTS, BOTH OF CHICAGO, ILLINOIS. i

RETAINING MEANS FOR SANITARY CUP LINERS.

Application aled January 3, 1921.

To all whom t may concern:

Be it known that I, DAVID F. OURTIN, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Retaining Means for Sanitary Cup Liners;

and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specication.

This invention relates to an improvement in retaining means for sanitary cup liners, said liners being of the shape shown in my copending United States application enltitled Liner for sanitary soda holders and filed January 3rd, 1921, Seria] No. 434,446. l In the copending application referred to the cup liner is composed of a blank formed of paraffin coated paper or the like and is adapted to be inserted into a conical holder and thereupon assume a conical form to conform to the interior shape of the holder, and lit therein so as to hold any contained liquid without any danger of leakage.

The particular object of this invention is 'the provision of a retaining means for a liner which will positively hold the liner in position in the holder, and in such a position that it will not be liable to leakage or to spring up out of theholder after the same has been inserted therein.

A further object of this invention is the provision of a retaining means for such sanitary cup liners which can be readily applied to a cup or holder' and is adapted to be applied on old holders already in use or which can be put on cups during the process of manufacture, and which, moreover, is adjustable so that it can be applied to any size of holder and also in order to retain in position liners of different sizes.

Other and further important objects of this invention will be apparent from the disclosures in the accompanying drawings and specification.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings: Figure 1 represents a top plan view of the improved liner adapted to be held in position by the retaining means Serial No. 434,445.

of this invention, showing the liner as applied to a cup or holder, the cup or holder being indicated in dotted lines in the figure.

Figure 2 is a top plan view of the cup and liner after the liner has been inserted into the cup and showing it as held in position by the retaining means.

' Figure 3 is a side elevation of the assembled cup and liner, the top plan of which is shown in Figure 2.

Figure 4 is a detail elevation of the retaining means shown as applied to a cup and holding a liner in position thereon.

Figure 5 is a section taken on the line 55 of Figure 4 looking in the direction indicated by the arrows.

Figure 6 is a section taken on the line 6 6 of Figure 4 looking in the direction indicated.

Figure 7 is a detail view similar to Figure 4 showing the retaining means in its original normal position when a liner is about to be placed in or removed from a. cup or holder.

As shown on the drawings: The reference numeral 10 indicates a metallic cup or holder of interior conical shape such as is commonly used in connection with conical paper cups or liners for the dispensing of sodas or other like beverages. In this embodiment of the invention a liner 12, made of parafiined paper or some other suitable material is shown as applied to the cup 10, thisliner being made of such a shape that upon beingy inserted into the cup it will assume a conical form and be adapted to hold a beverage in the liner without any danger of leakage and without the use of any adhesive to hold the liner together. In order to hold the liner in such position in the cup before the beverage is inserted therein, a retaining means 14 is provided on the cup consisting essentially of a bifurcated spring member made of wire or the like, as shown in Figures 4 and 7, an end of one of the arms of said wire being bent inwardly as shown at 18 in order to fit into one of a series of corresponding holes 1G drilled into the sideof the cup 10.

IThe spring member 14 is made with two arms, one arm of which is provided with the inwardly projecting member 18. When in position on the cup 0r holder, the spring member 14 is adapted to coact with two outwardly projecting knobs, rivets or buttons having overhanging heads 20, beneath which the arms of the spring member 14 are adapted to fit and be held in position there-by.

The operation is as follows: The. liner 12 is inserted int-o the cup or holder 10 by merely pushing the same down into the cup and it is ot such construction that such insertion adapts it to correspond with the interior conical shape of the cup. The upper edge of the liner 12 will project for a short distance above the upper edge of the cup 10 and if the beverage to be used in the cup is not immediately inserted therein there naturally will be some danger of the liner springing up ont of position in the cup on account of its natural resiliency. In order to overcome this difliculty, the retaining means 14 is provided, the height of which above the edge of the cup is adjustable by reason of the provision of the inwardly projecting end 18, which is adapted to fit into any one of a series of holes 1G provided in the cup 10, thereby making` the retaining means applicable to several different of liners, said sizes of liners being standardized and the holes 1G in the sides of the cup are drilled therein accordingly to have the projecting end of the retainer' 14 correspond in height with the ditl'erent sizes of liners adapted to be used with said cups.

In the use of the retaining means the inwardly projecting end 18 is inserted into one of the holes 16, and the corresponding arm of the member 14 is then pushed underneath one side of the overhanging heads of the studs, screws, or rivets 20. The retainer 14 is made of resilient material which is normally in the shape shown in Figure 7, and the liner is inserted under the overhanging head or loop thereof and the other leg of the retainer 14 is then sprung over and pushed underneath the opposite edges of the buttons or rivets 20, finally assuming a position as shown in Figure 4, so that in this position it will positively retain the liner in proper position in the cup.

It willy be seen that herein is provided a retaining means for cup liners which will positively hold said liners in position in the cups or holders whether the liners are already formed into a conical shape and adapted to fit to the holders, or whether the liners are of the shape shown in this application where they are merely to be originally placed in the holders and eventually held therein by the weight of the liquid therein contained. This retainingmeans will be found to be very useful to retain said liners in a cup, especially when a number of cups are about to be filled and the liners cannot all be simultaneously held down in positions awaiting the insertion of the beverages thereinto. If desired, a number of the holders 10 may be fitted with the liners 12 and the retaining means 14 snapped thereover to hold the same in position ready for the insertion ofbeverages there-into Whenever such beverages are required.

I am aware that many changes may be made and various details of construction varied without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention:

1. The combination with a sanitary cup adapted to receive a liner therein, of aligned projecting members rigidly secured on the cup, and a resilient member adapted to removably engage behind opposite sides of said projecting members and overhang the liner to hold the same within the cup.

Q. A retaining means for sanitary cup liners comprising a resilient member having its middle portion bent into the form of a loop to overhang a liner in a cup, and a pair of aligned headed rivets secured on the exterior of the cup behind which the ends of said resilient member are adapted to be removably engaged.

3.11 retaining means for sanitary cup liners including a resilient member having its middle portion bent into the form of a loop to overhang and reta-in a liner in position in a cup, and having one of its ends bent inwardly in order to -tit into any one of a series of corresponding holes in the cup.

4. The combination with a sanitary liner holder having a pair of studs secured on the exterior thereof, of a spring clip adapted to overhang the liner and be opened to clamp against opposite sides of said studs to hold the liner in place.

The combination with a sanitary liner holder having a plurality of aligned openings therein, of a plurality of headed studs secured on said holder in a line parallel to the line of openings, a spring clip formedto overhang the liner and clamp against said studs behind the heads thereof, and a projection on said spring clip adapted to project into any one of said openings depending upon the size of the liner.

6. In combination, a sanitary cup, including a holder adapted to hold a liner, and means on the holder adapted to retain said liner in position, said means including a flexible retaining member adapted to be removably held on the holder by a plurality of studs acting' in combination with one of a series of holes in said holder.

vIn testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

DAVID F. CURTIN. IVitnesses CARLTON HILL, LAWRENCE Rnisfrmn. 

